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Speed Thread (Before and after transfer speed comparisons)

James
Grafter
Posts: 21,036
Thanks: 2
Registered: ‎04-04-2007

Re: Speed Thread (Before and after transfer speed comparisons)

Hi Jeremy,
We can send you a Thomson TG585v7 for £6.99 if you stay with us for another year.
VileReynard
Champion
Posts: 11,847
Thanks: 457
Fixes: 17
Registered: ‎01-09-2007

Re: Speed Thread (Before and after transfer speed comparisons)

Yes please James.
I assume you can deduct the £6-99 from my bank account via direct debit.  Cry Cry
My Netgear seems to be trying to use g.dmt to connect and the wireless end suffers.
(Don't ask me why).
What is the expected delivery date?

"In The Beginning Was The Word, And The Word Was Aardvark."

James
Grafter
Posts: 21,036
Thanks: 2
Registered: ‎04-04-2007

Re: Speed Thread (Before and after transfer speed comparisons)

Hi Jeremy,
I'd actually need it to be a one off card payment.
If I order it tonight, I'd expect you to have it on Tuesday, Wednesday at the latest.
VileReynard
Champion
Posts: 11,847
Thanks: 457
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Registered: ‎01-09-2007

Re: Speed Thread (Before and after transfer speed comparisons)

James - I've sent you a PM with my phone number  Smiley

"In The Beginning Was The Word, And The Word Was Aardvark."

VileReynard
Champion
Posts: 11,847
Thanks: 457
Fixes: 17
Registered: ‎01-09-2007

Re: Speed Thread (Before and after transfer speed comparisons)

Well, I'm committed for another year Smiley
I've located the CLI interface manual for the Thomson TG585v7 and it's 700 pages long Grin

"In The Beginning Was The Word, And The Word Was Aardvark."

Word_Warrior
Grafter
Posts: 502
Registered: ‎30-07-2007

Re: Speed Thread (Before and after transfer speed comparisons)

Here's today's figure after a modem reboot again.

Attached is the most recent graph from http://www.mybroadbandspeed.co.uk Overall everything is pretty stable, if a little disappointing.
Interesting point however, BBC iPlayer on my iphone this morning seemed pretty smooth without any annoying pauses so overall an improvement here although You tube on the same device was a bit hiccupy. Obviously using wifi for that but a wired imac for speed test.
Cannot do speed test with iphone as it's a flash based test which doesn't work on the iphone  Angry
pnf
Grafter
Posts: 266
Registered: ‎07-11-2007

Re: Speed Thread (Before and after transfer speed comparisons)

Since yesterday morning each time the router has resynced, either as a result of a reboot or due to the connection being lost, the downstream sync rate has increased and the upstream sync rate has decreased as shown by the following three BT speed tests that I managed to obtain - the BT speedtester has been a bit temperamental on ADSL2+.  The connection was lost today at 12:10 but had been stable for 24 hours prior to that.
Speed readings using the BT Speedtester:
Fri 05/12/2008 09:40
Test1 comprises of Best Effort Test:  -provides background information.
    Your DSL connection rate: 11704 kbps(DOWN-STREAM),  976 kbps(UP-STREAM)
    IP profile for your line is - 9000 kbps
    Actual IP throughput achieved during the test was - 8190 kbps
Fri 05/12/2008 19:35
Test1 comprises of Best Effort Test:  -provides background information.
    Your DSL connection rate: 11812 kbps(DOWN-STREAM),  952 kbps(UP-STREAM)
    IP profile for your line is - 9000 kbps
    Actual IP throughput achieved during the test was - 8085 kbps
Sat 06/12/2008 12:20
Test1 comprises of Best Effort Test:  -provides background information.
    Your DSL connection rate: 12524 kbps(DOWN-STREAM),  852 kbps(UP-STREAM)
    IP profile for your line is - 9000 kbps
    Actual IP throughput achieved during the test was - 8357 kbps
Speed readings using www.mybroadbandspeed.co.uk:
Fri  05/12/2008 15:45 - IP Profile 9000 kbps  Actual Throughput Up/Down: 775/8473 kbps
Fri  05/12/2008 19:25 - IP Profile 9000 kbps  Actual Throughput Up/Down: 725/8428 kbps
Fri  05/12/2008 21:30 - IP Profile 9000 kbps  Actual Throughput Up/Down: 602/8440 kbps
Fri  05/12/2008 23:00 - IP Profile 9000 kbps  Actual Throughput Up/Down: 765/8459 kbps
Sat 06/12/2008 10:30 - IP Profile 9000 kbps  Actual Throughput Up/Down: 792/7572 kbps
Sat 06/12/2008 12:10 - IP Profile 9000 kbps  Actual Throughput Up/Down: 795/8459 kbps
Router Stats:
Link Information - 08:35 - 06/12/2008
Uptime: 0 days, 20:19:14
Modulation: G.992.5 annex A
Bandwidth (Up/Down) [kbps/kbps]: 952 / 11,814
Data Transferred (Sent/Received) [MB/MB]: 44.90 / 622.17
Output Power (Up/Down) [dBm]: 12.5 / 22.5
Line Attenuation (Up/Down) [dB]: 17.0 / 33.0
SN Margin (Up/Down) [dB]: 5.0 / 8.5
Vendor ID (Local/Remote): TMMB / TSTC
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 1 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 30 / 0
FEC Errors (Up/Down): 0 / 4,147,148
CRC Errors (Up/Down): 5,333 / 149
HEC Errors (Up/Down): 6,475 / 134
Link Information - 12:13 - 06/12/2008  (after disconnection at 12:10)
Uptime: 0 days, 0:02:27
Modulation: G.992.5 annex A
Bandwidth (Up/Down) [kbps/kbps]: 855 / 12,526
Data Transferred (Sent/Received) [KB/KB]: 9.00 / 8.00
Output Power (Up/Down) [dBm]: 12.5 / 23.0
Line Attenuation (Up/Down) [dB]: 17.0 / 33.0
SN Margin (Up/Down) [dB]: 8.0 / 6.5
Vendor ID (Local/Remote): TMMB / TSTC
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 50 / 0
FEC Errors (Up/Down): 5,979 / 1,835
CRC Errors (Up/Down): 74,266 / 0
HEC Errors (Up/Down): 67,044 / 0
pnf
Grafter
Posts: 266
Registered: ‎07-11-2007

Re: Speed Thread (Before and after transfer speed comparisons)

Since I last posted, my connection became a little unstable and disconnected a number of times.  As a result, the upstream and downstream sync speeds have been adjusting themselves downwards.  On Saturday the up/down sync speeds were 855/12,526 and currently they are 810/11,581.  The line seems to be more stable at this lower sync speed and last night the downstream SN Margin never dropped below 6.0 dB, whereas on the two previous evenings it fell to 5.0 dB.  My IP Profile according to the BT Speedtester is now 10,000 kbps, although it is still being reported as 9,000 kbps in the PlusNet Member Centre.  However, this hasn't impeded my download speeds which have increased as a result - see stats below:
BT Speedtester readings taken since the last posting:
Sat 06/12/2008 19:20
Test1 comprises of Best Effort Test:  -provides background information.
    Your DSL connection rate: 12524 kbps(DOWN-STREAM),  852kbps(UP-STREAM)
    IP profile for your line is - 9000 kbps
    Actual IP throughput achieved during the test was - 8383 kbps
Sun 07/12/2008 22:05
Test1 comprises of Best Effort Test:  -provides background information.
    Your DSL connection rate: 11580 kbps(DOWN-STREAM),  808 kbps(UP-STREAM)
    IP profile for your line is - 9000 kbps
    Actual IP throughput achieved during the test was - 8128 kbps
Mon 07/12/2008 15:50
Test1 comprises of Best Effort Test:  -provides background information.
    Your DSL connection rate: 11580 kbps(DOWN-STREAM),  808 kbps(UP-STREAM)
    IP profile for your line is - 10000 kbps
    Actual IP throughput achieved during the test was - 9292 kbps
Speed readings taken since the last posting using www.mybroadbandspeed.co.uk:
Sat 06/12/2008  15:40 - IP Profile 9000 kbps    Actual Throughput Up/Down: 713/8699 kbps
Sat 06/12/2008  19:20 - IP Profile 9000 kbps    Actual Throughput Up/Down: 705/7843 kbps
Sat 06/12/2008  21:50 - IP Profile 9000 kbps    Actual Throughput Up/Down: 663/8704 kbps
Sun 07/12/2008 10:45 - IP Profile 9000 kbps    Actual Throughput Up/Down: 699/8692 kbps
Sun 07/12/2008 17:05 - IP Profile 9000 kbps    Actual Throughput Up/Down: 676/8703 kbps
Sun 07/12/2008 22:05 - IP Profile 9000 kbps    Actual Throughput Up/Down: 677/7676 kbps
Sun 07/12/2008 23:00 - IP Profile 9000 kbps    Actual Throughput Up/Down: 675/4118 kbps
Mon 08/12/2008 10:50 - IP Profile 10000 kbps  Actual Throughput Up/Down: 677/9667 kbps
Mon 08/12/2008 12:55 - IP Profile 10000 kbps  Actual Throughput Up/Down: 675/9669 kbps
Mon 08/12/2008 15:50 - IP Profile 10000 kbps  Actual Throughput Up/Down: 677/9664 kbps
Router Stats:
Link Information - 15:50 - 08/12/2008
Uptime: 0 days, 23:09:24
Modulation: G.992.5 annex A
Bandwidth (Up/Down) [kbps/kbps]: 810 / 11,581
Data Transferred (Sent/Received) [MB/MB]: 44.07 / 348.21
Output Power (Up/Down) [dBm]: 12.5 / 23.0
Line Attenuation (Up/Down) [dB]: 17.0 / 33.0
SN Margin (Up/Down) [dB]: 9.5 / 7.5
Vendor ID (Local/Remote): TMMB / TSTC
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 30 / 0
FEC Errors (Up/Down): 557,796 / 2,265,435
CRC Errors (Up/Down): 109,706 / 146
HEC Errors (Up/Down): 99,375 / 141
Community Veteran
Posts: 3,366
Thanks: 15
Registered: ‎06-04-2007

Re: Speed Thread (Before and after transfer speed comparisons)

Quote from: pnf
... there is a tool that gives people an estimate of the speed that their line is likely to provide. 

Interesting that BT tool has over the years I have had ADSL has slowly changed the information it reports from showing 2.5Mb to now showing 1Mb!
If there is anybody else out there that has kept an Eagle eye on this noticed the same would be interesting to know.
Now BT has a vested interest is doing this so people do not complain.
SW
--
3Mb FTTC
https://portal.plus.net/my.html?action=data_transfer_speed
michaelm
Grafter
Posts: 83
Registered: ‎21-06-2007

Re: Speed Thread (Before and after transfer speed comparisons)

Hi all
My new broadband was activated today and so far there has been a notable increase in speed. Bearing in mind my first test was at peak times I am very happy with the results. Please see attached pre and post ADSL2+ modem screenshots. I am not sure if PN needs to update my BRAS profile.
Early days yet.
The speed test showed over 10MBps of download. I would have been happier with a snappier upload but I guess I'll have to wait....

Plusnet Staff
Plusnet Staff
Posts: 12,169
Thanks: 18
Fixes: 1
Registered: ‎04-04-2007

Re: Speed Thread (Before and after transfer speed comparisons)

Quote from: Word
It would be too simplistic to say that as I was getting around 50% ± of the "up to 8M" connection that I could expect around 50%± of 24M but to actually get around the same after several reboots of the modem indicates that there is a long way to go yet.

Doesn't work like that unfortunately. ADSL2+ works best on really good short lines, if you can get above about 4.5-5Mbps on ADSL then you'll see an increase in speed with ADSL2+. If you're below about 1.5Mbps again you'll see an increase in speed. But for lines between about 1.5Mbps to 4.5Mbps the actual speed is unlikely to increase by much. Have a look at the graph here:
http://www.internode.on.net/residential/internet/home_adsl/extreme/
If you're in that middle band then ADSL2+ doesn't really do much to increase the speed unfortunately.
Plusnet Staff
Plusnet Staff
Posts: 12,169
Thanks: 18
Fixes: 1
Registered: ‎04-04-2007

Re: Speed Thread (Before and after transfer speed comparisons)

Quote from: gm4jjj
Yes James, I am happy to continue testing as it does give us some idea of how this all works in real world difficult line conditions.
I am wondering if I mucked things up by forcing a lower S/N figure here? - It now appears that the exchange have somehow limited sync to just over 3000 and I cannot get above that figure whatever I do with DMT tool.

That's probably the DLM kicking in, with what it thinks is a very unstable line it has a new set of line profiles that work differently and cap the max speed, so long as it remains stable it will move the line profile back up the chain and let it sync at a higher rate.
gm4jjj
Rising Star
Posts: 697
Thanks: 6
Fixes: 3
Registered: ‎30-07-2007

Re: Speed Thread (Before and after transfer speed comparisons)

Thanks Dave, I am syncing at over 4000 now ADSL1. But still limited to under 2500 data rate on tests, PN show Max stable rate 3500.
Word_Warrior
Grafter
Posts: 502
Registered: ‎30-07-2007

Re: Speed Thread (Before and after transfer speed comparisons)

Quote from: dave
Quote from: Word
It would be too simplistic to say that as I was getting around 50% ± of the "up to 8M" connection that I could expect around 50%± of 24M but to actually get around the same after several reboots of the modem indicates that there is a long way to go yet.

Doesn't work like that unfortunately. ADSL2+ works best on really good short lines, if you can get above about 4.5-5Mbps on ADSL then you'll see an increase in speed with ADSL2+. If you're below about 1.5Mbps again you'll see an increase in speed. But for lines between about 1.5Mbps to 4.5Mbps the actual speed is unlikely to increase by much. Have a look at the graph here:
http://www.internode.on.net/residential/internet/home_adsl/extreme/
If you're in that middle band then ADSL2+ doesn't really do much to increase the speed unfortunately.

That's disappointing to hear, I was kind of hoping for a bit more speed up and down but it seems I'm at the optimum  Cry
Latest graph attached after latest modem reboot. Notice it dropped down again.
Community Veteran
Posts: 26,785
Thanks: 985
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Registered: ‎10-04-2007

Re: Speed Thread (Before and after transfer speed comparisons)

I'm not sure why you are crying. Look on the bright side, you've got a very significant increase in your upload speed (more than I'm currently paying an extra £8 per month for!).
jelv (a.k.a Spoon Whittler)
   Why I have left Plusnet (warning: long post!)   
Broadband: Andrews & Arnold Home::1 (FTTC 80/20)
Line rental: Pulse 8 Home Line Rental (£14.40/month)
Mobile: iD mobile (£4/month)